87768924 has 12 divisors (see below), whose sum is σ = 204794184. Its totient is φ = 29256304.

The previous prime is 87768917. The next prime is 87768929. The reversal of 87768924 is 42986778.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87768929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3657027 + ... + 3657050.

It is an arithmetic number, because the mean of its divisors is an integer number (17066182).

Almost surely, 2^87768924 is an apocalyptic number.

It is an amenable number.

87768924 is an abundant number, since it is smaller than the sum of its proper divisors (117025260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87768924 is a wasteful number, since it uses less digits than its factorization.

87768924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314084 (or 7314082 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 87768924 is about 9368.5070315392. The cubic root of 87768924 is about 444.4063522816.

The spelling of 87768924 in words is "eighty-seven million, seven hundred sixty-eight thousand, nine hundred twenty-four".